Dust-spraying machine.



PATENTED JUNE 27,19 G. G. & G. E. JOHNSON.

DUST SPRAYING MACHINE.

APPLICATION FILED SEPT. 21,1903.

3 SEEBTS-SHEET 1.

I /A IVENTORS eorye 0.]571 7130 n charzeafijhnsow ATTORNE PATENTED JUNE27, 1905.

G. G. & G. E. JOHNSON. DUST SPRAYING MACHINE.

APPLIOA'IION FILED $EPT. 21.1903.

3 SHEETS-SHEET 8.

lllll I/yVE/VTORS By rdesEfihnsan.

ATTORNEY.

NITED STATES Patented June 27, 1905.

PATENT FFICE.

GEORGE O. JOHNSON AND CHARLES E. JOHNSON, OF KANSAS CITY, MISSOURI.

DUST-SPRAYING MACHINE.

SPECIFICATION forming part of Letters Patent No. 793,526, dated June 27,1905.

Application filed Septemae; 21 1903. Serial No. 174,121.

To all 1071 0771, fl; TIN/{L7} concern.-

' Be it known'that we, GEORGE O. JOHNSON and CHARLES E. JOHNSON,citizens of the United States, residing at Kansas City, in the county 0f Jackson and Stateof Missouri have i nvented certain new and usefulImprovements in Dust- Spraying Machines; and we do declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and tothe figures of reference marked thereon, which form a part of thisspecification.

Our present invention relates to a machine for projecting a sprayo'finsecticide or fungicide powder or dust on trees, vineyards, tobacco,hops, cotton-fields, &c., and is an improvcment over Patent No. 684,261,issued to us October 8, 1901.

The objects of our present invention are, first, to provide improvedmeans for holding the valve-rod depressed; second, to provide improvedagitator-blades; third, to providea more simple and substantialconstruction of thefan-shell,dust-hopper,and fan-shell nozzle; fourth,to provide an improved feeding means, an d,fi fth, to provide meanswhereby the entire sprayer may revolve around its driving-gear, theparts retaining the same relative position in connection with saiddriving-gear at whatever angle the machine is turned.

Further objects of our invention are to provide many improved details ofstructure which we have developed in the practical working of ourmachine and which will be hereinafter described, and pointed out in theaccompanying drawings, in which" Figure 1 is a side elevation of theworking parts of a machine constructed in accordance with our invention,the dusthopper and blower-nozzle being in central vertical section toshow the stirrer-blades, the valve, and the valve-operating mechanism.Fig. 2 is an end view, partly in section, showing the operatingmechanism.

of the entire machine. Fig. 4 is adetail view of the means for adjustingthe valve controllingthe flow of dust from the dust-hopper.

Fig. 3 is a top plan view Fig. 5 is a sectional view of same. Fig. 6 isa sectional view on the line in m, Fig. 7, showing the stirrer-bladesand a modification of the means for feeding the dust from the hopper.Fig. 7 is an end view of the hopper, showing the means operating thestirrer-blades and valve. Fig. Sis an enlarged detail view of themodification of the feeding means, showing parts of the hopper andblower-nozzle in section. Fig.9 is a top plan view of the hopper.

Referring more in detail to the drawings, in Figs. 1 and 2, 3 representsa base-board, to which are rigidly attached the base 4 and circulartrack 5. Supported on track 5 is a dusthopper comprising a conicalbottom 6, a drum 7, seated in an annular shoulder on the upper end ofbottom 6, and a lid 8, having a depending annular flange 9, embracingthe upper edge of drum 7. Lid 8 is secured to drum 7 by stud-bolts orother suitable means. This hopper is a receptacle for the dust or powderwhich is placed therein through an opening 10 in lid 8.v The flow ofdust from the hopper is regulated by a puppet-valve 11, secured on thelower end of a valve-rod 12. A depending annular flange 13 on bottom 6forms a seat for valve 11. To prevent the dust from packing in thehopper-bottom, we employ an agitator comprising arms 14 14, havinga hub15, secured on a vertical tubular shaft 16. Arm 14 extends almost to theinner surface of conical bottom 6 and carries an arm 17 which revolvestherewith and prevents the packingof the dust in the hopper. On thelower end of side 17 and extending downwardly into the valve-neck is afinger 91, which, revolving withside 17, prevents the dust from cloggingsaid neck. The arms 14 14' are shaped substantially as shown, and theremaybe aseries of said arms locked at different angles on shaft 16. Shaft16 is made tubular in order to form a channel for valve-rod 12, whichcannot be placed outside of said shaft on account of the revolving arms14 14. Tubular shaft 16, on which said arms are mounted, extends througha circular opening in brace 25, seated on the shoulder at the top ofconical bottom 6 of the hopper and up through a circular opening in lid8, saidopeni'ngs being large enough to permit free rota tion of theshaft, but snug enough to prevent its rattling or wabbling. On saidshaft, above the opening in lid 8, is secured a worm 631.

wheel 19, the teeth of which are preferably inclined and curved, asshown, to fit the worm 20, by which they are engaged. Worm is mounted ona horizontal shaft 21, the end of which adjacent to said worm isjournaled in a perforated lug 22, integral with lid 8. Shaft 21 extendsa short distance beyond the sides of the hopper at a right angle to theblowernozzle and is journaled near its outer end in a perforated lug 23near the edge of and integral with lid 8. 4 On the outer end of shaft 21is mounted a pulley 24. Passing through base 4 and journaled in thesides thereof is a shaft 26. Within said base and secured to shaft 26 isa beveled gear-wheel 27. On its outer end shaft 26 carries a tight andloose pulley 3O 30. Lateral movement of shaft 26 is prevented by meansof annular collars 28 29, secured to said shaft at opposite sides ofbase 4. Meshing with bevel gear-wheel 27 is a bevel-pinion 31, securedto a perpendicular shaft 32, said shaft being journaled in openings inthe top and bottom of a standard To give greater rigidity to standard33, we prefer to make same integral with base 4. At the upper end ofshaft 32 is secured a bevel gear-wheel 34. Meshing with bevel gear-wheel34 is a bevelpinion 35, secured to a horizontal shaft 36, which isjournaled near one end in a journalboX 37 on bracket 38 and carries onsaid end a pulley 39, which connects Withpulley 24 by means of a belt40. Near its opposite end shaft 36 is journaled in a journal-box 41 onbracket 42, said bracket being preferably integral with and a projectionof blower-shell 43, but may be mounted on a base on said shell. Near theend of shaft 36, which projects through journal-box 41, is attached apulley 44, which connects with a pulley 45 by means of belt 46. Pulley45 is secured to a horizontal shaft 47 which passes through openings inthe sides of blower-shell 43, and is mounted in bracket-bearings 48 onthe respective sides of said shell. Said brackets are preferably madeintegral with the sides of said shell. Within shell 43 and secured toshaft 47 is a rotary fan adapted to create a draft through the nozzle 49of said shell. Blowershell 43, projection 42, and shaft 36, with theparts mounted thereon, are supported by arms 38 and 53, loosely mountedon standard 33, arm 38 being provided with a journal-box 51, resting onan annular flange 50 on standard 32, and arm 53 with a journal-box 52,resting on base 4. The dust-hopper and blowershell nozzle are supportedby a roller 55, mounted in a yoke 54, which is secured to the under sideof nozzle 49. Roller 55 travels on a circular track 5, secured to base3.' For purposes of economy, convenience, and solidity we prefer to makethe blower-shell 43, bracket 42, nozzle 49, and conical bottom 6integral. 93 is acap secured to blower-shell 43 and is adapted to beremoved for the purpose of repairing the machinery within the blowershould such repairs be necessary. 57 is a brace integral with theblower-shell and hopper-bottom and joining said parts for the purpose ofimparting greater rigidity thereto.

In Figs. 4 and 5 we show a modification of the means for regulating thefeed of dust from the hopper to the blower-nozzle. As in our previousmachine valve-rod 12 turns Within the tubular shaft 16 and carries apuppetvalve 11 at its lower end. In the modified arrangement rod 12extendsupwardly through a perforation in the center of cap 58 on theupper end of shaft 16. The upper portion of rod 12 is screw-threaded tohold a rotatable knob or hand-nut 59, having a tubular lower portion 60.Resting on cap 58 of shaft 16 and coiled around rod 12 is anexpansion-spring 61, said spring being adapted to fit within the lowertubular portion 60 and rest against shoulders 62 of knob 59. Near thelower end of tubular portion 60 is a lug 63, carrying a pin 64. A littleunderneath knob 59 is a vertical standard 65, provided with a series ofnotches for engaging pin 64. Said standard may be of any suitablematerial and secured to the lid of the hopper, but is preferably madeintegral therewith. Knob 59 being supported by spring 61 supports thevalve-rod 12 and valve 11, and owing to the upward pressure of saidspring valve 11 is normally cl0sedthat is, in contact with thevalve-seat 13. Knob 59 may be secured in anydesired position on rod 12in order to adjust the tension of spring 61 to provide for weakening ofsaid spring. Knob 59 is threaded to correspond with the screw-threads onvalve-rod 12, and when it is desired to adjust said knob it is raised orlowered on rod 12 by turning on said threads. When knob 59 is turned tothe desired position on rod12, it is locked in such position by means ofa nut 92 on the upper end of the rod. When pin 64 is free from thestandard 65, spring 61 forces knob 59 up to the limit of expansion ofsaid spring, and knob 59 being secured to rod 12 draws said rodupwardly, which in turn draws valve 11 upwardly against the face 13,thereby shutting off the feed from the hopper. When pin 64 is placed inthe upper notch 65, said valve is held open a short distance and is heldopen a correspondingly greater distance as it is placed in each of thelower notches. Should the opening when the pin is placed in the first ofnotches 65' be too great, knob 59 is screwed down on rod 12 and lockedby nut 92 in such position as to bring pin 64 a shorter distance abovesaid notch, so that when knob 59 is forced down and pin 64 is lodged insaid notch valve 11 will be lowered the desired distance below face 13.In this way the feed may be regulated so that a very small amount ofdustescapes from the hopper.

In Figs. 6, 7, 8, 9 we show a modification of the feeding means.Attached to a shaft 67 is a worm-screw 68, fitting neck 69 at the bottomof the hopper. Resting on the shoulders at the top of conical bottom 6is a brace of the same kind and serving the same purpose as that usedwith the puppetvalve feed previously described. Shaft 67 passes upwardlythrough an opening in brace 25 and through an opening in lid 8. Attachedto shaft 67 are stirrer-blades 70 of any suitable pattern, but which arepreferably extended almost to the sides of conical bottom 6 to preventpacking of the dust therein. Worm gear wheel 19 is tightened on shaft67, so that as said shaft is operated by means to be hereinafterdescribed, shaft 67 revolves in the hopper, thereby revolvingstirrer-blades 70 and worm-screw 68. Shaft 67 extends a short distanceabove gear-wheel 19 and is loosely mounted in a socket bearing 71, whichis carried by a depression-lever 7 L, by means of a pivot pin 72,extending transversely through a pair of cars 73 on theupper part ofsaid bearing and through a perforation in said lever. One end of lever74 is pivotally con nected with a standard 7 5, said standard beingrigidly mounted on lid 8 of the hopper. At its opposite end level; 74;is provided with a handle 76. Midway between handle 76 and cars 73 is abox 77, engaging a segmental portion 78 of a standard 79, rigidlymounted on lid 8 of the hopper. lever 74 may be raised or lowered to thede sired position and secured in such position by means of a set-screw80 in box 77. When it is desired to shut off the feed, lever '74 issecured in the position indicated by the dotted lines at the lower endof segmental portion 78, Fig. 7. When lever 74-. is forced downwardly tosuch position, shaft 67, being attached thereto, is also forceddownwardly until the top of the screw 68 is flush with the top of neck69, thereby closing said neck. The recesses 81 in screw 68 are verynarrow at the top and gradually widen toward. the bottom, so that shoulda small feed be desired lever 74 is raised a short distance on segmentalportion 78, thereby raising shaft 67 and screw 68 until a part of recess81 is exposed to the dust in the hopper, which entering said recessdrops through the gradually-widening opening into the nozzle of theblower. Vith this arrangement a direct feed from the hopper to thenozzle may be procured, thus obviating clogging of the neck of thehopper. Should a greater feed be desired, lever 74 is secured in ahigher position on portion 78, the feed being thus increased until lever74 reaches the point indicated by the upper dotted lines, when thebottom of valve 68 will be on a level with the top of neck 69 and neck69 be practically open. WVith the screw in the latter position coarse orlumpy fertilizers may be fed through said neck. Shaft 67 is revolved bymeans of a Worm 82 engaging a worm gear-wheel 19. l/Vorm 'lid 8. lar 86,riding in a groove on said shaft and By means of handle 76 82 is securedto the-inner end of a horizontal shaft 83, journaled in lugs 84 85 onhopper- Near the outer end of shaft 83 is a colprovided at its outer endwith a spiral-jaw clutch-face adapted to engage a correspondlng face onthe inner side of an annular flange 87' on a loose pulley 88, mounted onthe outer end of shaft 83. Pivoted in a pair of cars 89 on lid 8 is abell-crank lever 90, the upper arm of which is secured to a loose ringon collar 86. the clutch on collar 86 is thrown out of connection withthe clutch on flange 87 and pulley 88 turns loosely on shaft 75. Bylowering the lower arm of lever 90 collar 86 is forced outwardly untilthe aws on its outer I face engage the aws on the inner face of theflange 87, thereby turning collar 86 and shaft 88. Attached to the outerend of nozzle 19 is a discharge-tube of the same construction as thatshown in our previous patent.

In the use of this machine the base is secured to a base-board, which isplaced in the sired feed of dust, which dropping into the nozzle isforced by the draft from the blower up through the discharge-tube andspreads in a spray over the trees. The dischargetube is attached to thenozzle of the blower in the manner shown in our previous patent, thejoint being sufliciently flexible to permit the tube being turned, sothat the dust will reach trees in a limited circuit on each side of thewagon; but should it be desired to reach a point beyond that circuit theentire machine being hung by brackets on the standard on the base andsupported by the roller riding on the circular track, as previouslydescribed, may be turned so that the dust from the discharge-tube canreach any desired point within a radius limited by the power of draftfrom the blower.

We do not wish to be understood as limiting ourselves to the exactdetails of structure herein shown and described, inasmuch as the samemay be varied without departing from the spirit of our invention.

Having thus described our invention, what we claim as new therein, anddesire to secure by Letters Patent, is-

1. In a dust-spraying machine, adust-receptacle having an opening in thebottom thereof, and an agitator rotatably mounted within said receptacleand having an arm extending By raising the lower arm of lever 90' &

to said bottom opening and parallel to the inner wall of the receptacle,said arm having at its lower terminus a finger projecting into saidbottom opening and parallel to the wall of the same.

2. In a dust-spraying machine, a dust-receptacle, a valve-seat in thebottom of said receptacle, a valve arranged beneath said valveseat andhaving a valve-rod extending upwardl y through said receptacle, anotched standard mounted on said receptacle, a knob mounted on saidrod,and means on said knob for engaging the notches in said standard.

3. In adust-spraying machine, adust-receptacle having an openingin thebottom thereof, a valve arranged to close said opening, a rod on saidvalve extending upwardly through said receptacle and beingscrew-threaded on its upper end, a notched standard mounted on saidreceptacle, a knob having a threaded perforation, carried by said rod, alug or pin on said knob adapted to engage said notched standard, andmeans for retaining said knob in a desired position on said rod.

4. In adust-spraying machine, a dust-receptacle having an opening in thebottom thereof, a tubular shaft within said receptacle and having a capon the upper end thereof, a rod mounted within said shaft and passingthrough a cap on the upper end thereof, a hand-nut having a lowertubular portion, mounted on said rod near the upper end thereof, a nutmounted on said rod above said hand-nut, a coiled spring around said rodadapted to rest on the cap on the upper portion of said shaft andfitting within the lower tubular portion of the hand-nut, a pin or lugon said handnut, and a notched or toothed standard on the top of saidreceptacle.

5. In adust-sprayingmaehine, a dust-receptacle comprising a conicalbottom with an opening in the bottom thereof and having an annularflange near the top thereof, andadrum seated on said annular flange, alateral brace seated on said flange and havingaperforation therein, anda vertical rotatable shaft within said receptacle and extending throughthe perforation in said brace.

dust-receptacle mounted above said nozzle, said blower-shell, nozzle,and dust-receptacle being adapted to revolve around said base.

7 In a dust-spraying machine, a suitable base, a blower-shell mounted onsaid base, a

nozzle extending from said blower-shell, a

dust-receptacle mounted above said nozzle a depending yoke on saidnozzle, and a roller mounted in said yoke.

8. In a dust-spraying machine, a suitable base, astandard mounted onsaid base, annular flanges on said standard, brackets rotatably mountedon said standard and supported by said flanges, a blower-shell carriedby said brackets,a nozzle extending from said blowershell, and adust-receptacle mounted above said nozzle.

9. In a dust-spraying machine, the combination of a dust-receptaclehaving a conical bottom with an opening therein, a blowershell, a fanrevolving within said shell, a standard on the upper part of theblower-shell, a nozzle extending outwardly from said shell andconnecting with the conical bottom of the hopper, the said blower-shell,nozzle, and conical bottom being integral.

10. In a dust-sprayingmachine, the combination of a dust-receptaclehaving a conical bottom with an opening therein, a blowershell, afanrevolving Within said shell, brackets on each side of said shell forsupporting the fan-shaft, a standard on the upper part of said shell, anozzle on said shell, connecting with said conical bottom, a braceconnecting said conical bottom and said blower-shell,

said blower-shell, nozzle, brackets, brace, and

conical bottom being integral.

In testimony whereof we aflix our signatures in presence of twowitnesses.

GEORGE C. JOHNSON. CHARLES E. JOHNSON.

Witnesses:

FREDERICK J. CHASE, O. H. MGQUARY.

